Some speed cameras are forward facing (ie: to see the driver's face).
This is supposed to eliminate arguments which arise afterwards as to who was actually driving the car.
Though, obviously this allows for immature riders to go through as fast as they like while flipping the bird.
I certainly wouldn't condone this ..... screw it! Yeah I would and I do it too.

Though disappointingly, a couple of cameras on one regular route are set at 50 but don't go off even at 70 which I think is slack of the local authority - after all, the driver of the car coming the other way might think I'm flipping
HIM the bird!
